– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Mon 22 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Mon 22 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Mon 22 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMild with moderate rain (total 18mm) on Mon night, Becoming colder with a light covering of snow, mostly falling on Mon night. Freeze-thaw conditions (max 7°C on Wed morning, min 0°C on Mon night). Mainly fresh winds. | Days 4–6 Weather SummaryModerate rain (total 18mm), heaviest on Thu night. Freeze-thaw conditions (max 6°C on Thu morning, min -2°C on Sat night). Wind will be generally light. | |||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  |  |  | | |  | | |  | | |  | |
light snow | light snow | light snow | some clouds | cloudy | light rain | light rain | rain shwrs | rain shwrs | cloudy | some clouds | heavy rain | light rain | cloudy | some clouds | some clouds | cloudy | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
1 | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
1.6 | 4 | 6 | — | — | 1.3 | 4 | 1.3 | 0.1 | — | — | 15 | 3 | — | — | — | — | — | |
max °C | 2 | 2 | 2 | 2 | 1 | 4 | 7 | 4 | 3 | 6 | 6 | 5 | 3 | 2 | 1 | 2 | 2 | -1 |
min °C | 2 | 2 | 0 | 1 | 1 | 2 | 6 | 4 | 1 | 5 | 6 | 3 | 2 | 2 | -1 | 1 | 0 | -2 |
-2 | -2 | -3 | -2 | -1 | 0 | 3 | -1 | -1 | 4 | 5 | 3 | 2 | 2 | -1 | 0 | 0 | -2 | |
800 | 850 | 600 | 650 | 750 | 1650 | 2200 | 1150 | 1400 | 1800 | 1900 | 1150 | 950 | 800 | 200 | 650 | 700 | 0 | |
Cloud base (m) | 650 | 550 | 550 | 550 | 650 | 2400 | 1500 | 700 | 600 | 700 | 1600 | 650 | 550 | 550 | 600 | 600 | 650 | 1750 |
 | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:17 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mild with moderate rain (total 18mm) on Mon night, Becoming colder with a light covering of snow, mostly falling on Mon night. Freeze-thaw conditions (max 7°C on Wed morning, min 0°C on Mon night). Mainly fresh winds.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 18mm), heaviest on Thu night. Freeze-thaw conditions (max 6°C on Thu morning, min -2°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.